html, body, ul, li, ol, dl, dd, dt, p, h1, h2, h3, h4, h5, h6, form, legend, img, a, video, figure, source {
  margin: 0;
  padding: 0;
  font-family: "Microsoft YaHei";
}

ul, li, ol {
  list-style: none;
}

a {
  text-decoration: none;
}
